CVE-2019-25653

MEDIUM

Navicat for Oracle 12.1.15 Password Field Denial of Service

Title source: cna
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2019-25653. PoCs published by Victor Mondragón.

AI-analyzed exploit summary This PoC exploits a buffer overflow vulnerability in Navicat for Oracle 12.1.15 by generating a 550-byte string of 'A' characters, which crashes the application when pasted into the password field during connection setup.

Description

Navicat for Oracle 12.1.15 contains a denial of service vulnerability that allows local attackers to crash the application by supplying an excessively long string in the password field. Attackers can paste a buffer of 550 repeated characters into the password parameter during Oracle connection configuration to trigger an application crash.

Exploits (1)

exploitdb WORKING POC
by Victor Mondragón · pythondoswindows
https://www.exploit-db.com/exploits/46383

This PoC exploits a buffer overflow vulnerability in Navicat for Oracle 12.1.15 by generating a 550-byte string of 'A' characters, which crashes the application when pasted into the password field during connection setup.

Classification
Working Poc 95%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Navicat for Oracle 12.1.15
No auth needed
Prerequisites: Python to generate the payload · Navicat for Oracle 12.1.15 installed on the target system
devstral-2 · analyzed Apr 08, 2026 Full analysis →

References (4)

Core 4
Core References
Exploit exploit
ExploitDB-46383
https://www.exploit-db.com/exploits/46383
Product product
Official Product Homepage
https://www.navicat.com/es/
Product product
Product Reference
https://www.navicat.com/es/download/navicat-for-oracle
Third Party Advisory third-party-advisory
VulnCheck Advisory: Navicat for Oracle 12.1.15 Password Field Denial of Service
https://www.vulncheck.com/advisories/navicat-for-oracle-password-field-denial-of-service

Scores

CVSS v3 6.2
EPSS 0.0019
EPSS Percentile 9.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-620
Status published
Products (2)
Navicat/Navicat for Oracle 12.1.15
navicat/navicat_for_oracle < 12.1.15
Published Mar 30, 2026
Tracked Since Mar 30, 2026